First cut of mini dart:html.

tool/input_sdk/lib/html/html_common/lists.dart

+// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+part of html_common;
+
+class Lists {
+
+  /**
+   * Returns the index in the array [a] of the given [element], starting
+   * the search at index [startIndex] to [endIndex] (exclusive).
+   * Returns -1 if [element] is not found.
+   */
+  static int indexOf(List a,
+                     Object element,
+                     int startIndex,
+                     int endIndex) {
+    if (startIndex >= a.length) {
+      return -1;
+    }
+    if (startIndex < 0) {
+      startIndex = 0;
+    }
+    for (int i = startIndex; i < endIndex; i++) {
+      if (a[i] == element) {
+        return i;
+      }
+    }
+    return -1;
+  }
+
+  /**
+   * Returns the last index in the array [a] of the given [element], starting
+   * the search at index [startIndex] to 0.
+   * Returns -1 if [element] is not found.
+   */
+  static int lastIndexOf(List a, Object element, int startIndex) {
+    if (startIndex < 0) {
+      return -1;
+    }
+    if (startIndex >= a.length) {
+      startIndex = a.length - 1;
+    }
+    for (int i = startIndex; i >= 0; i--) {
+      if (a[i] == element) {
+        return i;
+      }
+    }
+    return -1;
+  }
+
+  /**
+   * Returns a sub list copy of this list, from [start] to
+   * [end] ([end] not inclusive).
+   * Returns an empty list if [length] is 0.
+   * It is an error if indices are not valid for the list, or
+   * if [end] is before [start].
+   */
+  static List getRange(List a, int start, int end, List accumulator) {
+    if (start < 0) throw new RangeError.value(start);
+    if (end < start) throw new RangeError.value(end);
+    if (end > a.length) throw new RangeError.value(end);
+    for (int i = start; i < end; i++) {
+      accumulator.add(a[i]);
+    }
+    return accumulator;
+  }
+}
+
+/**
+ * For accessing underlying node lists, for dart:js interop.
+ */
+abstract class NodeListWrapper {
+  List<Node> get rawList;
+}